robert_gsfame Posted December 11, 2009 Share Posted December 11, 2009 i am still learning javascript as i am new to this..i try this code but no effect, hope that anyone could help. THX a lot <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>Untitled Document</title> <script type="text/javascript"> function button() { var x=document.getElementById("text1") if(x =="0"){alert("you have to fill!");}else{ alert("Yeah, you got it!!");} } </script> </head> <body> <form name="form1" method="post"> <input type="text" name="text" id="text1" /> <input type="button" onclick="button()"/> </form> </body> </html> This code didn't run well as when i left the textbox empty and still alert("Yeah, You got it!") Quote Link to comment Share on other sites More sharing options...
kopytko Posted December 11, 2009 Share Posted December 11, 2009 Try this: function button() { var x = document.getElementById("text1").value.length; if(x == 0) { alert("you have to fill!"); } else{ alert("Yeah, you got it!!"); } } Quote Link to comment Share on other sites More sharing options...
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